Stop mechanism



J. J. S VCULLY. .STOP MECHANfSM. APPLICATION FILED MAY 2a, 1918. RENEWEDmm: 26. 1922. 11,430,569.

Patfinted 00h 3,1922,

2 SHEETS-SHEET I 0. igii J. J. SCULLY. STOP M ECHANISM. 'APPLICATION minMAY 29, I918- mmswzo JUNE 25, 1922. 1,430,569,

Patented Oct? 3, 1922.

2 SHEETS-SHEET 2 li e-tented tint. it, mFi an it its TION O35 DELAW'ARE.

ailhllORT, CONNECTICUT, ASSIGNOR- TO COLUMBIA GRAPHQ-:

sror r/rnenenrsr/i.

Application filed May 22, 1918, Serial No. 237.058. Renewed June 26,1922. Serial 'fTo. 570,932.

To aZZ 107mm it may concern:

Be it known that 1, JOHN J. SG'ULLY, a citizen of the United States ofAmerica, and a residentof Bridgeport, Connecticut, have invented a newand useful improvement in Stop Mechanism, which invention is fully setforth in the following specification.

This invention relates to stop mechanism, and particularly to stopmechanism especially designed for use in talking machines.

In machines of the latter type, a soundbox, operatively connected to asound-conveying member which together will be referred to as a travelingelement, has movement relatively to a rotary record support whichsupport, or any other suitable motordriven member, will be referred toas a rotating element, the sound-box and soundconveying member generallybeing fed across the record support by the coaction oi the former withthe groove in the soundrecord tablet. It is an object of this inventionto provide stop mechanism of improved construction which shall stop the1'0- tation of the record support or other rotating element upon thecompletion of the travcrse of the sound-box and sound-conveying member.

It further object of this invention is to provide stop mechanism of thecharacter referred to with improved means whereby a predetermined numberof revolutions of the rotating element must occur before. said stopmechanism can come into action, whether the traveling element bestationary or not.

Other objects relate to the provision oi a stop mechanism of the type inquestion which is simple in construction, inexpensive to manufacture andinstall, and efficient in operation.

Stated broadly, the invention comprises,

in combination, a rotating element, a traveling element, stop mechanism,as brake or switch, a member for actuatim the same, shown. as a,rotating member, means operatively conn cted with the rotating elementfor moving said member into stop-actuating position and comprising areciprocating inen'iber, and means operatively connected with thetraveling element for preventing the movement of said member intostopactuating position while the traveling element continues itstraverse. Preferably a predetermined number of revolutions of therotating element must occur before said actuating member comes intoapproximate stop-actuating position, said means operatlvely connectedwith the traveling element thereafter, and so long as the travelingelement continues its traverse, preventing said actuating member frommoving into final stop-actuating position.

The invention is capable of receiving a variety of mechanicalexpressions, one of which is shown-on the accompanying drawngs, but itis to be expressly understood that the drawings are for purposes ofillustration only and are not to be construed as a definition of thelimits of the invention, reference being had to the appended claims forthat purpose.

in said drawings Fig. 1 is a top plan view of a talking machine providedwith automatic stop mecha nism in accordance with the present inventionand showing the relation of the parts after a predetermined number ofrevolutions of the turn-table shaft and prior to the auto maticactuation of the stop mechanism;

F 2 is a perspective view of the more importantelements of the stopmechanism; and

Fig. 3 is a detail perspective of the outer end of the reciprocatingmember.

tieterring in detail to said drawings, wherein the same referencecharacters designote corn pending parts in the several tigures,represents a driving motor of any suitable construction, shown as aspringmotor, 2 the motor-frame, 3 the motor-board, shown as hinged tothe stationary part ot the tailring machine casing at l, 5 the drivingSl'J'iIltllP ot' a rotary record support, shown in dot and dash lines at6, and 7 the usual sound-box connected toa tone-arm 8, suitably mountedon the talking machine casing, as by a bracket 9, to enable the soundbox to traverse a record on said support.

Said sound-box, tone-arm and bracket are also shown in dot-and-dashlines for the sake of: clearness.

Frictionally connected to the tone-arm in any suitable way is an arm 10provided at its outer end with an operating nose 11 which engages in aslot, shown as provided by a pair of bent-over ears 12, pivoted to themotor-plate are and provided at its opposite end with an operating nosel5. Said lever 13 may be limited in its movements in any suitable way asby a on a lever 13 i stop-pin 16 and a second pin of the same character,or, as shown, the hub of a twoarm rotary member to be described.

Rotatably mounted on the motor-board at 17 is an actuating member 18shown as a gear provided with a plurality of radial teeth 19. Carried bysaid member 18 is a pair of diametrically disposed upstanding lugs 20and 21, one or both of whch are designed to coact with both theoperating nose 15 of the lever 13 and a contact element of the stopmechanism to be described.

Means are provided for positively and intermittently rotating the member18 irom the motor of the machine. In the form shown, an eccentric 22 ismounted on the spindle 5 of the rotary record support 6 and engages inan eccentric strap 28 on a reciprocating member 24. provided adjacentits outer end with a slot 25 which receives a guide pin 26. Also carriedby the reciprocating member 24 is a lateral nose or tooth 27 designed toengage and rotate a ratchet wheel 28 pivoted at 29 on the motor-boardand carrying a pair of arms 30 provided with upstanding lugs 31 designedto engage the teeth 19 of member 18 and rotate the latter.

Suitable stop mechanism, which may be either a brake or a switch,designed to be actuated by the stop-actuating member 18 is suitablymounted on the motor-frame or motor-board. In the form shown, a brakelever 32 is pivotally mounted on the motorboard at 33 and provided withan operating arm 34:, a depending arm 35 carrying a brake pad 36designed to engage the usual brake disk of the talking machine governor,and a trip arm 37. A spring 38 connected at one end to an upstanding lug39 on the operat ing arm 34 and at its other end to a starting lever 10pivoted at 11 to the motor-board, normally urges the brake lever intostopping position. End 42 of lever 40 is provided with an upstanding lugdesigned to engage operating arm of brake lever 32 and move the latterinto starting position, the.

opposite end 44 of said starting lever 46 ex tending through a suitablelimiting slot to a point outside of the periphery of the motorboard 3where it may be conveniently ma nipulated. It is to be expresslyunderstood, however, that the invention is not limited to the use of abrake pad, as a switch might be operated by said lever 32, nor to the application of the brake pad to the governor disk, as by suitablevariation said brake pad might engage other rotary members driven fromthe motor. Said stop mechanism also comprises a suitable contact elementwhich, in the form shown, comprises a detent 45 pivoted to themotor-board at 1-6 and provided with a nose &7 in the path of rotationof one or both of the upstanding lugs 20 and 21, a depending ear 4C8designed to enage the trip arm 3'? of brake lever 32, and

lug 49 to which is connected one end of spring 50, the opposite end ofsaid spring being attached to a suitable pin 51. Spring 50 normallyholds detent e5 in engagement with a stop pin 52 suitably mounted on themotor-board.

To start the machine, lever i0 is swung from the position shown in Fig.1 to the right as far as is permitted by th limiting slot providedtherefor in the motor-board and, during this movement, upstanding lug 43engages operating arm 34.- ot lever 32 and moves said lever against thetension of spring 38 until trip arm 37 snaps back of the depending ear18 on detent d5, whereupon spring 50 draws said detent against stop 52maintaining brake lever 32 in starting position.

Brake element 36 being now withdrawn from engagement with the governordisk, the motor starts and rotates the spindle 5 and record support (3.Eccentric 22 moves member 21- both longitudinally and laterally. Duringoutward movement of said member 24:, during which time it is also movingpivotally to the right on pin 26, nose or toot-h 27 passes by theratchet wheel 28 without engaging the same. During inward movementofsaid member 24, during which time it is also moving pivotally to theleft on pin 26, nose or tooth 27 engages one of the teeth on ratchetwheel 28 and rotates the latter in an anti-clockwise direction. In theform shown, ratchet wheel. 28 is provided with eight teeth whereby saidratchet wheel will make one revolution for each eight revolutions of thespindle 5 of the rotary record support 6. At each half revolution ofsaid ratchet wheel 28, one of the arms 30 engages its upstanding lug 31with a tooth 19 of the rotary stop-actuating member 18 and advances thesame through a distance equal to the pitch of paid teeth 19. In order toadvance the lugs 20 and 21 on said member 18 from their position whenthe machine is stopped into operative relationship with the nose 15 oflever 13 and nose 4:7 oi detent -5l5, member 18 must make a halfrevolution. lVhile said member 18 is making this onehalr" revolution,ample time is provided for the positioning of the sound-box in operativerelation to the outer groove of the record tablet. Thus, assuming thatmember 18 has twenty teeth, it will require ten advancements thereof bythe double-armed member 80 to move said member through one-half arevolution, and as an arm 30 is moved into engagement with a tooth ofmember 18 following each four revolutions of the spindle 5, it will takeforty revolutions of said spindle to advance stop-actuating member 18into coacting relationship with nose 15 and nose -l7, i. e. intoapproximate stop-a=:.tuating position. It is to be expressly understood,however, that the invention is not restricted to the use of twenty teethon the member 18, nor two arms on the member 30, nor eight teeth on theratchetwheel 28; nor is it limited to the use of two up standing lugs 20and 21 on the member 18, as by a suitable selection of numbers, thelapse of time before member 18 moves into approximatestop-actuatingposition may be varied as desired. 1 i v The sound-box 7 having beenoperatively engaged with the sound-record tablet during the period whenmember 18 is making its half revolution, the sound-box and tonearm nowtraverse the record and, through the frictional connection betweenthetone arm and the arm 10, tend to drive said arm, in a clockwisedirection. Operating nose 11 on said arm 10, by engagement in the slotprovided by ears 12 on the lever 13, also tends to drive said lever in aclockwise directiona The extent of movement of said arm and lever is,however, limited bythe engagement of said lever with the stop 16.Thereafter and until member 18 has been advanced in a clockwisedirection through its half revolution to approximate stop-actuatingposition, the arm 10 slips with respect to the tone-arm 8. When one ofsaid lugs 20 and 21 is advanced into approximate stopactuating position,it engages the operating nose 15 of lever 13 and moves saidlever in ananti-clockwise direction, said lever moving arm 10 in an anti-clockwisedirection, which movement is permitted by the frictional connectionbetween said arm and the tone-arm. During the following interim when alug 31 is not in engagement with a tooth 19 of member 18, arm 10, drivenby the tone-arm through the frictional connection provided, moves thelever 18 in a clockwise direction and, through its engagement with thelug on the member 18, 20 in Fig. 1, rotates the lat,-

ter in an anti-clockwise direction a distance riod, the other of the twolugs 20 and 21,

shown as 21 in Fig. 1, is in approximate stop-actuating position justout of engagement with nose 4;? on detent 45. When the tone-arm ceasesits traverse, lever 18 is no longer moved in a clockwise direction byarm 10 and therefore no longer subjects member 18 to an impulse formoving the Said same in an anti-clockwise direction. member, therefore,remains 111 the position to which it has been moved during the lastvwith nose 4:? of detent 45. Detent 15 is thereby swung aboutits pivot4-6 against the tension of spring50, withdrawing car 48 from engagementwith trip arm 37 of brake lever 32, whereupon spring 38 moves brakelever 32 into stopping position. During this movement of member 18 intofinal stop-actuating position, lug 20 moves lever 13 out of theway andmoves past the same and, owing to the pivotal movement of detent 4:5,lug 21 may move pastnose 4t? of said detent. The parts are now in aposition for again starting the machine, whereupon member 18 must makeanother half revolution before ineving into operative relationship withlever 13 and detent 45, i. e., into approximate stopactuating position.

Owing to the relation of end 11 of arnr 10 with the slot provided by theears 12 on lever 13, said lever maymove out of opera tive engagementwith said arm and with the motor about the pivot et when said motor andthe parts of the stop mechanism mounted on the motor-board are movedupwardly for inspection. Upon return of the motor to normal position,lever 13 will resume its operative relationship with the end 11 of arm10, without requiring manual connection or disconnection ofthe partsconstituting the train of mechanism between the tone-arm and thestop-actuating member 18.

If it be desired to stop the machine prior to the automatic actuation ofthe stopmechanism, a lever 58 may be provided as disclosed in theapplication of Frank C.

l-linckley and myself, filer filedi-kpril 8, 1918. 1

While the embodiment illustrated on the drawings has been described withconsiderable particularity, it is to be expressly understood that theinvention not to be restricted thereto, as the same is capable ofreceiving a variety of mechanical expressions,

some of which will readily suggest themselves to those skilled in theart, while cer tain parts thereof are capable of use without otherpartsthereof. Reference is therefore to be had to the claims heretoappended for a definition ofthe limits of the invention.

hat is claimed is 1. In combination, a rotating element, a travelingelement, stop mechanism, a member for actuating said stop mechanism,means operatively connected with the rotating element for advancing saidactuating member into approximate stop-actuating aosition while saidrotating element makes predetermined number of revolutions, said meanscomprising a reciprocating member,

and means operatively connected with the traveling element forpreventing said actuating member from moving into final stopactuatingposition while said traveling element continues its traverse.

2. In combination, a rotating element, a traveling element, stopmechanism, a member for actuating said stop mechanism, means operativelyconnected with the rotating element for advancing said actuating memberinto approximate stop-actuating position While said rotating elementmakes a predetermined number of revolutions, said means comprising areciprocating member and a member rotated thereby and operativelyrelated to said actuating member to advance the same, and meansoperatively connected with the traveling element for preventing saidactuating member from moving into final stop-actuating position; whilesaid traveling element continues its traverse.

3. In combination, a rotating element, a traveling element, stopmechanism, a member tor actuating said stop mechanism, means operativelyconnected with the rotating element for advancing said actuating memberinto approximate stop-actuating position while said rotating elementmakes a predetermined number of revolutions, said means comprising areciprocating member and a member rotated thereby and adapted tointermittently rotate said actuating member, and means operativelyconnected with the traveling element for preventing said actuatingmember from moving into final stop-actuating posit-ion while saidtraveling element continues its traverse.

4. In combination, a rotating element, a traveling element, stopmechanism, a member for actuating said stop mechanism,

means operatively connected with the traveling element for moving saidactuating member in one direction, and means operatively connected withthe rotating element for moving said actuating member in the oppositedirection and comprising a reciprocating member, said actuating memberbecoming operathely related to said stop mechanism only after apredetermined number of revolutions ofsa'id rotating element.

5. In combination, a rotating element, a traveling element, stopmechanlsm, a member for actuating said stop mechanism, means operativelyconnected with the traveling element for moving said actuating member inone direction, and means operatively connected with the rotating elementfor moving said actuating member in the opposite direction, saidlast-named means comprising a reciprocating member and a member rotatedthereby and operatively related to said actuating member to move thesame, the aforesaid actuating member becoming operatively related tosaid stop mechanism only after a predetermined number 01' revolutions ofsaid rotating element.

6. In combination, a rotating element, a traveling element, stopmechanism, a member for actuating said stop mechanism. means operativelyconnected with the traveling element for moving said actuating mem' berin one direction, and means operatively connected with the rotatingelement for mov-' ing said actuating member in the opposite direction,said last-named means compri ing a reciprocating member and a memberrotated thereby and adapted to intermittently rotate said actuatingmember, said actuating member becoming operatively re lated to said stopmechanism only after a predetermined number of revolutions of saidrotating element.

7. In combination, a rotating element, a traveling element, stopmechanism, a member for actuating said stop mechanism, means operativelyconnected with the rotating element for moving said member intoapproximate stop-actuating position, said last-named means comprising areciprocating member, and means operatively connected with the travelingelement for preventing said actuating member ilirom moving into finalstop-actuating position while the traveling element continues itstraverse.

8. In combination, a rotating element, a traveling element, stopmechanism, a member for actuating said stop mechanism, means operativelyconnected with the rotating element for moving said member intoapproximate stop-actuating position, Said last-named means comprising areciprocating member and a member rotated thereby and operativelyrelated to said actuating member to move the same, and means operativelyconnected With the traveling element for preventing said actuatingmember from moving into final stop-actuating position while thetraveling element continues its traverse.

9. In combination, a rotating element, a traveling element, stopmechanism, a member for actuating said stop mechanism, means operativelyconnected with the rotating element for moving said member intoapproximate stop-actuating position, said last-named means comprising areciprocating member and a member rotated thereby and adapted tointermittently rotate said actuating member, and means operativelyconnected With the traveling element for preventing said actuatingmember from moving into 'final stop-actuating position while thetraveling element continues its traverse.

10. In'combination, a rotating element, a traveling element, stopmechanism, a member for actuating said stop mechanism, means operativelyconnected with the rotating element for moving said member into aiproximate stop-actuating position, said last-named means comprising areciprocating member, a member rotated thereby and arms on said rotatingmember adapted to intermittently engage and move said actuating memberand means operatively con nected with the traveling element forpreventing said actuating member from moving into final stop-actuatingposition While the traveling element continues its traverse.

11. lln combination, a rotating element, a traveling element, stopmechanism, a memher for actuating said stop mechanism, means operativelyconnected with the rotating element for moving said. member intoapproximate stop-actuating position, said' last-named means comprising areciprocating member. an eccentric for reciprocating the same and amember moved by said reciprocat'ng member and ope 'atively related tosaid actuating member to move the same, and means operatively connectedwith the traveling element for perventing said actuating member frommoving into final stopactuating position While the traveling elementcontinues its traverse.

12. In combination, a rotating element, a traveling element, stopmechanism, a memher for actuating said stop mechanism, means operativelyconnected with the rotating element for moving said actuating memherinto approximate stop-actuating position, said last-named meanscomprising a reciprocating member, and means operatively connected withthe traveling element for moving said actuating member out ofapproximate stop-actuating position so long as said traveling elementcontinues its traversc.

13. In combination, a rotating element, a traveling element, stopmechanism, a member for actuating said stop mechanism, a reciprocatingmember operatively connected with the rotating element for moving saidactuating member in one direction, and means op eratively connected withthe traveling element for moving said actuating member in the oppositedirection.

14E. In combination, a rotating element, a traveling element, stopmechanism, a memher for actuating said stop mechanism, a reciprocatingmember operatively connected with the rotating element forintermittently moving said actuating member in one di-' rection, andmeans operatively connected with the traveling element forintermittently moving said actuating member in the opposite direction solong as the traveling element continues its traverse.

15. In combination, a rotating element, a traveling element, stopmechanism comprising a contact element, a member adapted to engage saidcontact element and actuate said. stop mechanism, means operativelyconnected with the traveling element for moving said member in onedirection, and a reciprocating member operatively connected with therotating element for moving said memher in the opposite direction andoperable upon the stopping of the traveling element to move said memberinto engagement with said contact element.

16. In combination, a rotating element, a traveling element, meanscooperatively related to said rotating and traveling elements to stopthe rotating element upon stopping of the traveling element, andreciprocating means operatively connected to said rotating element foractuating said stopping means.

17. In combination, a rotating element, a traveling element, stop means,reciprocating means driven by the rotating element "for actuating saidstop means, and means cooperating with the traveling element adapted toprevent such actuation during the travel of the traveling element.

In testimony whereof I have signed this specification.

JOHN J. SCULLY.

